               :tundra    {:movement-cost 4 :armor-bonus -1 :attack-bonus -1}
               :swamp     {:movement-cost 6 :armor-bonus -2 :attack-bonus -2}
               :ford      {:movement-cost 5 :armor-bonus -1 :attack-bonus -1}
-              :base      {:movement-cost 2 :armor-bonus  3 :attack-bonus  2}}
+              :base      {:movement-cost 2 :armor-bonus  3 :attack-bonus  2}
+              :seaport   {:movement-cost 2 :armor-bonus  0 :attack-bonus  0}}
             :attack-strengths
             {:personnel 5
              :armored   2}

                :swamp         {:movement-cost 6 :armor-bonus -2 :attack-bonus -2}
                :ford          {:movement-cost 5 :armor-bonus -1 :attack-bonus -1}
                :shallow-water {:movement-cost 7 :armor-bonus -2 :attack-bonus -2}
                :base          {:movement-cost 2 :armor-bonus  3 :attack-bonus  2}}
              :attack-strengths
              {:personnel 5
               :armored   2}

                 :state-map :free-attack-twice
                 :image "tilesets/elite-command/units/destroyer-COLOR.png"
                 :terrain-effects
                 {:sea     {:movement-cost 1 :armor-bonus 0 :attack-bonus 0}
                  :seaport {:movement-cost 1 :armor-bonus 0 :attack-bonus 0}}
                 :attack-strengths
                 {:personnel 10
                  :armored   12}
